I have written some code for capturing image using nodejs and I have used npm base64-to-image, but it's not working properly. Below is the code:
var base64Str = policyObj.image;
var path ='public/images/';
var optionalObj = {'fileName': 'policyimg', 'type':'png'};
base64ToImage(base64Str,path,optionalObj);
Please let me know where I am going wrong.
One possible problem:
"Error: Invalid base64 string"
To debug, try replacing 1st line with:
var base64Str = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
Another:
An incorrect path as a logical error, runs code without error but not saving the image file as it should. Ie, if the path points to a non-existant directory, misspelled directory or a inaccessable directory.
To debug, try replacing 2nd line with
var path ='./';so it will save in the script directory. Note that '/' leads to no file saved, and an empty string leads to error "Missing mandatory arguments..."
console.log(typeof policyObj.image) to see if it is a string. Next, try console.log(policyObj.image). Look at the output if it starts with data:image/xxx;base64, where xxx is the image format. It's not uncommon that data-urls like this get misformatted in the header or additional citation marks, and it's possible to "repair" the string if that's the case.// target is path where you want to save file example /upload/filename.png
fs.writeFile(target, new Buffer(base64Str, "base64"), function (err) {
if(err) console.log(err);
console.log('The file has been saved!');
});
var base64Str = policyObj.image; var path ='public/images'; var optionalObj = {'fileName': 'policyimg', 'type':'png'}; base64ToImage(base64Str,path,optionalObj); fs.writeFile(path, new Buffer(base64Str, "base64"), function (err) { if(err) console.log('Error:' + err); else { console.log('The file has been saved!'); } });